Your go to roster for Ironbreakers. You have all your positionals. Starting with the Rune Golem is a must as it is what makes the roster unique, and gives you some pitch control with it's high strength. Keep your 2 Blockers wide as they have Tackle, it's useful for preventing opposing dashes for the end zone. Your Blitzers are the only Ma5 players so keep them well spaces out in your screen to cover as much of the pitch as possible. Ma is your weakness. Your strength is having Block on everyone and the highest Av in the game. Though you only start with 2 Re-rolls this should be enough to get by, you'll likely need them for important rushes.

This is a super conservative approach. You do not have the advantage of having a big guy, but you have an extra Re-roll for the inevitable rushes you will have to do.